X-Git-Url: https://git.kernel.dk/?a=blobdiff_plain;f=arch%2Farch-s390.h;h=169282b9d4d308de3e3ca23aa6ba5be7c46613e1;hb=aef66dece241aaec11e9cb544c525c66e32c7d04;hp=b7048ad6a11b37a475271f44f9f5483bc5d3a80b;hpb=317b95d07d4921d2594a1be6e014c9c2d062fe75;p=fio.git

diff --git a/arch/arch-s390.h b/arch/arch-s390.h
index b7048ad6..169282b9 100644
--- a/arch/arch-s390.h
+++ b/arch/arch-s390.h
@@ -1,7 +1,7 @@
 #ifndef ARCH_S390_H
 #define ARCH_S390_H
 
-#define ARCH	(arch_s390)
+#define FIO_ARCH	(arch_s390)
 
 #ifndef __NR_ioprio_set
 #define __NR_ioprio_set		282
@@ -12,7 +12,41 @@
 #define __NR_fadvise64		253
 #endif
 
-#define nop	asm volatile ("diag 0,0,68" : : : "memory")
-#define ffz(v)	generic_ffz((v))
+#ifndef __NR_sys_splice
+#define __NR_sys_splice		306
+#define __NR_sys_tee		308
+#define __NR_sys_vmsplice	309
+#endif
+
+#define nop		asm volatile("nop" : : : "memory")
+#define read_barrier()	asm volatile("bcr 15,0" : : : "memory")
+#define write_barrier()	asm volatile("bcr 15,0" : : : "memory")
+
+static inline unsigned long long get_cpu_clock(void)
+{
+	unsigned long long clk;
+
+#ifdef CONFIG_S390_Z196_FACILITIES
+	/*
+	 * Fio needs monotonic (never lower), but not strict monotonic (never
+	 * the same) so store clock fast is enough.
+	 */
+	__asm__ __volatile__("stckf %0" : "=Q" (clk) : : "cc");
+#else
+	__asm__ __volatile__("stck %0" : "=Q" (clk) : : "cc");
+#endif
+	return clk>>12;
+}
+
+#define ARCH_CPU_CLOCK_CYCLES_PER_USEC 1
+#define ARCH_HAVE_CPU_CLOCK
+
+#define ARCH_HAVE_INIT
+extern int tsc_reliable;
+static inline int arch_init(char *envp[])
+{
+	tsc_reliable = 1;
+	return 0;
+}
 
 #endif